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Superconducting Qubits Quantum Thermodynamics

Characterizing a statistical arrow of time in quantum measurement dynamics

arXiv
Authors: P. M. Harrington, D. Tan, M. Naghiloo, K. W. Murch

Year

2018

Paper ID

23259

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

In both thermodynamics and quantum mechanics the arrow of time is characterized by the statistical likelihood of physical processes. We characterize this arrow of time for the continuous quantum measurement dynamics of a superconducting qubit. By experimentally tracking individual weak measurement trajectories, we compare the path probabilities of forward and backward-in-time evolution to develop an arrow of time statistic associated with measurement dynamics. We compare the statistics of individual trajectories to ensemble properties showing that the measurement dynamics obeys both detailed and integral fluctuation theorems thus establishing the consistency between microscopic and macroscopic measurement dynamics.

Why This Paper Matters

  • This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
  • It adds a 2018 reference point for readers tracking recent quantum research.
  • In both thermodynamics and quantum mechanics the arrow of time is characterized by the statistical likelihood of physical processes.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1811.07708 [2] arXiv https://arxiv.org/abs/1811.07708 [3] Publisher https://arxiv.org/abs/1811.07708

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